WO2020096581A1 - Système de réparation de dent - Google Patents

Système de réparation de dent Download PDF

Info

Publication number
WO2020096581A1
WO2020096581A1 PCT/US2018/059496 US2018059496W WO2020096581A1 WO 2020096581 A1 WO2020096581 A1 WO 2020096581A1 US 2018059496 W US2018059496 W US 2018059496W WO 2020096581 A1 WO2020096581 A1 WO 2020096581A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber optic
tooth
broken
aperture
tooth surface
Prior art date
Application number
PCT/US2018/059496
Other languages
English (en)
Inventor
Jeremy Ellis
Original Assignee
Dentistry Elevated Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dentistry Elevated Llc filed Critical Dentistry Elevated Llc
Priority to PCT/US2018/059496 priority Critical patent/WO2020096581A1/fr
Priority to US16/766,554 priority patent/US20200345454A1/en
Publication of WO2020096581A1 publication Critical patent/WO2020096581A1/fr
Priority to US17/491,981 priority patent/US20220015866A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/30—Securing inlays, onlays or crowns
    • A61C5/35—Pins; Mounting tools or dispensers therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/003—Apparatus for curing resins by radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/003—Apparatus for curing resins by radiation
    • A61C19/004—Hand-held apparatus, e.g. guns

Definitions

  • This invention relates to a tooth repair system including a method of: drilling an aperture in the broken tooth to a predetermined depth; providing a fiber optic— preferably of a diameter of between .3 and 1 millimeter and elastic modulus of between 22 GPa and 83 GPa— with a length longer than the predetermined depth; placing and adhering the fiber optic within the aperture so that a portion of the fiber optic is exposed beyond the broken tooth surface; and restoring the broken tooth surface around the exposed fiber optic so that the fiber optic anchors a restored tooth portion to the broken tooth surface.
  • the system may also include a tooth repair pin with the above specifications, further acid-etched and silane coated with a carrier sleeve.
  • a dental practitioner cuts grooves, divets, or other features in the injured tooth to create a type of mechanical lock between the tooth and restorative material, in addition to the chemical bonding provided by adhesive. See, e.g., Vaught, Mechanical Versus Chemical Retention for Restoring Complex Restorations: What is the Evidence ?, Journal of Dental Education, 71 (10) 1356-1362 (2007).
  • Other treatment possibilities include placing a veneer or crown.
  • these approaches are expensive, aggressive, invasive, and result in the inordinate removal of useful, existing tooth structure which ultimately limits future treatment options in case further repair attempts are ever needed.
  • a self-tapping metal pin may be anchored into the existing tooth to act as a type of mechanical lock for restorative material and to supplement adhesive chemical bonding. While this approach avoids the unnecessary removal of existing tooth structure described above, it also has serious drawbacks.
  • the inserted pin creates microfractures in the tooth enamel and dentin that weaken the tooth and may cause it to fail in the long term. See, e.g., Vaught; Segovic et ah, Changes in Dentin after Insertion of Self-threading Titanium Pins with 3 Methods: A Scanning Electron Microscope Pilot Study, The Journal of Prosthetic Dentistry, Vol. 87, Issue 2 (2002).
  • the metal pin is more rigid than tooth material, it unnaturally alters the directional force of the anterior tooth, introducing additional and damaging stresses. See, e.g., Zhang et ah, Review of Research on the Mechanical Properties of the Human Tooth , International Journal of Oral Science, 6, 61 - 69 (2014). Furthermore, because anterior teeth are thin and somewhat translucent, the inserted pin tends to make the tooth appear gray and less aesthetically appealing or natural looking.
  • a new tooth repair system is provided.
  • the system is long lasting and conservative in that it requires minimal removal of anterior tooth structure.
  • the system also generally maintains the natural directional forces and dynamics of, for example, an anterior tooth, by utilizing a flexible and narrow diameter fiber optic pin with a Young’s modulus that is comparable to that of the existing tooth material.
  • the problems of providing a conservative and lasting repair, preserving tooth structure, and generally maintaining natural directional forces and dynamics in an injured tooth is therefore solved.
  • the system includes a method of: drilling an aperture in the broken tooth to a predetermined depth; providing a fiber optic— preferably of a diameter of between .3 and 1 millimeter and Young’s modulus of between 22 GPa and 83 GPa— with a length longer than the predetermined depth; placing and adhering the fiber optic within the aperture so that a portion of the fiber optic is exposed beyond the broken tooth surface; and restoring the broken tooth surface around the exposed fiber optic so that the fiber optic anchors a restored tooth portion to the broken tooth surface.
  • the system may also include a tooth repair pin with the above specifications and further being acid-etched and silane coated with a carrier sleeve.
  • Figure l is a front view of a set of teeth showing an anterior tooth injury.
  • Figure 2 is an electron microscopy photograph showing a side, cross sectional view of a prior art tooth repair approach wherein an inserted metal self-tapping pin has cracked the tooth.
  • Figure 3 is a block diagram showing method steps in one embodiment of the system.
  • Figure 4 is a front view of an injured anterior tooth showing an aperture drilling step in one embodiment of the system.
  • Figure 5 is a front view of an injured anterior tooth showing a fiber optic placing and adhering step in one embodiment of the system.
  • Figure 6 is a front view of an injured anterior tooth showing restoring the broken tooth surface around the exposed fiber optic in one embodiment of the system.
  • Figure 7 is a perspective view of a tooth repair pin in one embodiment of the invention. DETAILED DESCRIPTION OF EMBODIMENTS AND
  • the present invention in its various embodiments, some of which are depicted in the figures herein, is a tooth repair system.
  • the below-described system may also be used for anterior as well as posterior teeth, although, in preferred embodiments the system is optimized for repair of anterior teeth.
  • Figure 1 an exemplary anterior tooth injury is shown. Specifically, within anterior tooth set 100, anterior tooth 101 depicts a typical incisal tip injury 102.
  • Figure 2 one example of an existing or prior art repair approach to such an injury is shown, as well as one of its obvious drawbacks.
  • Figure 2 is an electron microscopy photograph showing a metal, self-tapping pin 201 placed within an aperture 202 of a tooth 203, where such placement and attempted repair has created a sizable microfracture 201 in the tooth 203, thereby increasing the likelihood of future failure.
  • a method 300 of the improved system is set forth by block diagram (Fig. 3) and partial illustration of the steps (Figs. 4 - 6).
  • the dental practitioner drills 301 an aperture 401 to a predetermined depth in a broken tooth surface 102 along a longitudinal axis of the tooth 101.
  • the dental practitioner may choose from a variety of drill bits 402 and/or drill bit diameter sizes in creating the aperture 401, one exemplary and preferably sized bit has a diameter of 2 millimeters and preset depth of .6 millimeters.
  • the precise aperture depth and/or diameter will, of course, vary— without departing from the scope of the invention— based on the nature of the specific injury presented and the further requirements of the method described in further detail below.
  • the dental practitioner then provides 302 a fiber optic pin 501 having a length longer than the predetermined depth of the aperture 401 and a diameter smaller than that of the aperture 401.
  • the fiber optic pin 501 may have a diameter of between .3 and 1 millimeter and a length of between 5 and 10 millimeters, although sizes outside of these ranges may be used without departing from the scope and purposes of the invention.
  • the fiber optic pin 501 is only a single fiber optic strand, to be contrasted in structure and properties from larger fiber optic bundles or posts.
  • the fiber optic pin 501 must also have an elastic modulus similar to or only slightly varying from that of existing tooth material. More specifically, tooth enamel and dentin typically have a Young’s modulus of 17 GPa and 40 - 42 GPa, respectively.
  • the system preferably uses a fiber optic pin 501 with a Young’s modulus of between 22 GPa and 83 GPa. This elastic modulus range is contrasted to that of, e.g., more rigid stainless steel (up to 407 GPa) or titanium (-193 GPa) pins, as well as larger diameter fiber optic, polymer, or elastomeric pins and posts.
  • the fiber optic pin 501 is then acid etched 303 in order to roughen and/or create more surface area for optimizing later adhesive and/or chemical bonding. Such acid etching may be performed using acid available in many common commercial dental products.
  • the aperture 401 and/or tooth surfaces of the injury 102 may also be acid etched 304 for the same purpose, although typically using a different etchant.
  • One or more portions of the fiber optic pin 501 is then coated and or primed 305 with a silane preparation.
  • the carrier sleeve 704 may be, for example, tubular or a generally planar tab.
  • the fiber optic pin 501 is next adhered 306 to the injured tooth 102 in the aperture 401.
  • a glue and/or flowable composite (not shown) is placed on the fiber optic pin 501 which is then placed in the aperture 401 with remaining length extruding from the aperture 401.
  • the pin 501 and adhesive may then be light cured and restorative material added as a filling to the injured tooth 102 around the extruding length to comprise a restorative step 307.
  • a slightly different restorative step 307 light curing takes place following addition of the restorative material to the injured tooth 102.
  • any number of suitable adhesive and/or restorative systems or steps may be used without departing from the scope and purposes of the invention.
  • the fiber optic pin 501 transmits the light deeply into and throughout the aperture 401 during the curing process, resulting in a stronger chemical bond than may be achieved with other materials or mechanisms.
  • curing without the fiber optic may usually occur to a depth of 3 millimeters
  • curing depth with the fiber optic may double.
  • curing with the fiber optic may take place at various angles to the extent the fiber optic bends in angled apertures in some applications.
  • Some applications of the system may incorporate one or more fiber optic pin scaffoldings, allowing light curing to take place across a matrix.
  • embodiments of the present invention provide a long lasting and conservative tooth repair system that generally maintains the natural directional forces and dynamics of, e.g., an anterior tooth by utilizing a flexible and narrow diameter fiber optic pin with a Young’s modulus comparable to that of the existing tooth materials.
  • the solution supplements a chemical bond with a flexible mechanical one, thereby balancing both sheer and compressional forces with respect to a longitudinal axis of the repaired tooth.
  • Embodiments of the present invention typically yield significant cost advantages to patients in comparison to more aggressive procedures, being, e.g., up to five times less expensive than a crown procedure.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention concerne un système de réparation de dent comprenant un procédé de : perçage d'une ouverture dans, par exemple, une dent antérieure cassée à une profondeur prédéterminée ; fourniture d'une fibre optique, de préférence d'un diamètre compris entre 0,3 et 1 millimètre, et d'un module élastique compris entre 22 GPa et 83 GPa, ayant une longueur supérieure à la profondeur prédéterminée ; placement et adhésion de la fibre optique dans la première ouverture de sorte qu'une partie de la fibre optique est exposée au-delà de la surface de la dent cassée ; et restauration de la surface de dent cassée autour de la fibre optique exposée de sorte que la fibre optique ancre une partie de dent restaurée à la surface de dent cassée. Le système concerne en outre une broche de réparation de dent ayant les caractéristiques ci-dessus, gravée à l'acide et revêtue de silane avec un manchon de support.
PCT/US2018/059496 2018-11-06 2018-11-06 Système de réparation de dent WO2020096581A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/US2018/059496 WO2020096581A1 (fr) 2018-11-06 2018-11-06 Système de réparation de dent
US16/766,554 US20200345454A1 (en) 2018-11-06 2018-11-06 A tooth repair system
US17/491,981 US20220015866A1 (en) 2018-11-06 2021-10-01 Tooth repair system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2018/059496 WO2020096581A1 (fr) 2018-11-06 2018-11-06 Système de réparation de dent

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/766,554 A-371-Of-International US20200345454A1 (en) 2018-11-06 2018-11-06 A tooth repair system
US17/491,981 Division US20220015866A1 (en) 2018-11-06 2021-10-01 Tooth repair system

Publications (1)

Publication Number Publication Date
WO2020096581A1 true WO2020096581A1 (fr) 2020-05-14

Family

ID=70611997

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/059496 WO2020096581A1 (fr) 2018-11-06 2018-11-06 Système de réparation de dent

Country Status (2)

Country Link
US (2) US20200345454A1 (fr)
WO (1) WO2020096581A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102484720B1 (ko) * 2022-09-01 2023-01-03 허채헌 임플란트용 밀링 버

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5326263A (en) * 1992-06-12 1994-07-05 Bernard Weissman Light-curable tooth reinforcement
US6371763B1 (en) * 1997-11-28 2002-04-16 Robert J. Sicurelli, Jr. Flexible post in a dental post and core system
US20030148247A1 (en) * 2001-11-21 2003-08-07 Sicurelli Robert J. Application and energy applying methods for root canal sealing material
JP2005160865A (ja) * 2003-12-04 2005-06-23 Sun Medical Co Ltd 歯科用光ファイバー、およびそれを含む歯科治療用キット並びに歯科用光重合性組成物の硬化方法
US20110129788A1 (en) * 2009-12-02 2011-06-02 Taiwan Fiber Optics, Inc. Fiber optics dental post
EP3090701A1 (fr) * 2015-05-04 2016-11-09 ILUMI Sciences Inc. Tenon dentaire en fibres optiques tissées

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655711A (en) * 1986-05-21 1987-04-07 Ipco Corporation Placement assembly for a dental pin
US5919044A (en) * 1993-09-27 1999-07-06 Tru-Flex Post Systems, Inc. Flexible post in a dental post and core system
US5915970A (en) * 1993-09-27 1999-06-29 Tru-Flex Post Systems, Inc. Flexible post in a dental post and core system
US5971759A (en) * 1995-10-13 1999-10-26 Richeda; Fred A. Dental post and pin repair

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5326263A (en) * 1992-06-12 1994-07-05 Bernard Weissman Light-curable tooth reinforcement
US6371763B1 (en) * 1997-11-28 2002-04-16 Robert J. Sicurelli, Jr. Flexible post in a dental post and core system
US20030148247A1 (en) * 2001-11-21 2003-08-07 Sicurelli Robert J. Application and energy applying methods for root canal sealing material
JP2005160865A (ja) * 2003-12-04 2005-06-23 Sun Medical Co Ltd 歯科用光ファイバー、およびそれを含む歯科治療用キット並びに歯科用光重合性組成物の硬化方法
US20110129788A1 (en) * 2009-12-02 2011-06-02 Taiwan Fiber Optics, Inc. Fiber optics dental post
EP3090701A1 (fr) * 2015-05-04 2016-11-09 ILUMI Sciences Inc. Tenon dentaire en fibres optiques tissées

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
3M: "CEMENTING ENDODONTIC POST - RelyX™ Fiber Post RelyX™ Unicem™ Self-Adhesive Universal Resin Cement", 3M ESPE, 2006, pages 1 - 4, XP009521028, Retrieved from the Internet <URL:https://multimedia.3m.com/mws/media/385807O/3m-relyx-fiber-post-cementing-endodontic-post.pdf> *
CECCHIN ET AL: "Acid Etching and Surface Coating of Glass - Fiber Posts : Bond Strength and Interface Analysis", BRAZILIAN DENTAL JOURNAL, vol. 27, no. 2, 1 January 2016 (2016-01-01), pages 228 - 233, XP055705575, ISSN: 0103-6440, DOI: 10.1590/0103-6440201600722 *
ILUMI: "Introduction of iLumi Fiber Optic Dental Post", ILUMI, 2015, pages 1 - 15, XP009521029, Retrieved from the Internet <URL:http://dentica.cl/index.php?controller=attachment&id_attachment=1#:~:text=iLumi%C2%AE%20fiber%20optic%20posts%20are%20thermally%2Dcoated%20with%20optical,non%2Dcorrosive%2C%20biocompatible%20material.&text=The%20strength%20of%20the%20cylindrical,the%20fibers%20in%20the%20matrix> *
ILUMI: "Super Fiber Post/Glass Optical Fiber Post (Root Canal Post)", 2013, pages 1 - 5, Retrieved from the Internet <URL:http://ilumisi.ink.net.tw/products/> *
MIGLIAU ET AL.: "Evaluation of over-etching technique in the endodontically treated tooth restoration", ANNALI DI STOMATOLOGIA, vol. 6, no. 1, 1 January 2015 (2015-01-01), pages 10 - 14, XP055705580, ISSN: 1971-1441, DOI: 10.11138/ads/2015.6.1.010 *
STYLIANOU ET AL: "Light-transmitting fiber optic posts: An in vitro evaluation", THE JOURNAL OF PROSTHETIC DENTISTRY, vol. 117, no. 1, 1 January 2017 (2017-01-01), pages 116 - 123, XP029860313, ISSN: 0022-3913, DOI: 10.1016/j.prosdent.2016.06.020 *

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Publication number Publication date
US20220015866A1 (en) 2022-01-20
US20200345454A1 (en) 2020-11-05

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